local Circle = {}

function Circle:new(x,y)
   local circle = display.newCircle(x,y,Y*0.3)

   circle:setFillColor(0,1,0,0.3)

   function circle:update(delta)
      local dx = 1
      local dy = 1

      self:translate(dx*delta,dy*delta)
   end

   return circle
end

return Circle